"I mean, I looked really good right before Samuel was born, and we were both looking good, so, you know, what happens, happens," Catherine confessed. "There was no planning involved [for our second child], so [that's] probably exactly what had happened."

Catherine Giudici-Lowe Reveals Baby No. 2 Was a Surprise! (Exclusive)

"I knew I wanted a lot of kids, I just didn't know exactly when I'd be ready, because it's a lot," she added. "Guys can be ready easily, because you don't have to do anything for a long time! But immediately when it happens, everything changes [for women], so I had to be mentally prepared."